I have shown horses for many years, know how to groom a mane, and this the one that I have a lot of trouble with. I have one horse with this and I have used most of the products for horses with minor results, but had somewhat success with something called 'cholestral' (sp?) that is for ethnic hair. Still it had defied me, and when dries and the humidity.....well, frizz is an understatement for sure. I pull rather than undercut, I tried using the heated iron that humans use to straighten hair, but failed. I have used oils and ended up with frizzy oiled hair. I braid tightly and leave it for a week and when taken down it is easier to thin. At show time, I agree with Marsha to take out braids at the last minute and hope you can make it through before it blows up. Anyone solved this?